From 2273b73d99f39f010216726afe3b5ca9ebf62efe Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Johannes=20Sch=C3=B6nberger?= <hannesschoenberger@gmail.com>
Date: Sun, 16 Sep 2012 11:04:19 +0200
Subject: [PATCH] Add references for subpixel corner detection

---
 skimage/feature/corner.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/skimage/feature/corner.py b/skimage/feature/corner.py
index 9c7a2fdf..aa5211bf 100644
--- a/skimage/feature/corner.py
+++ b/skimage/feature/corner.py
@@ -302,6 +302,12 @@ def corner_subpix(image, corners, window_size=11, alpha=0.99):
     positions : (N, 2) ndarray
         Subpixel corner positions. NaN for "not classified" corners.
 
+    References
+    ----------
+    ..[1] http://www.ipb.uni-bonn.de/uploads/tx_ikgpublication/\
+          foerstner87.fast.pdf
+    ..[2] http://en.wikipedia.org/wiki/Corner_detection
+
     """
 
     # window extent in one direction